hours. Actual results for the year are: 1. Compute the applied fixed overhead. X 2. Compute the fixed overhead spending and volume variances. Enter amounts as positive numbers and select Favorable or Unfavorable. Spending variance $ Volume variance $ 3. Compute the variable overhead rate. $ 4. Compute the variable overhead spending and efficiency variances. Enter amounts as positive numbers and select Favorable or Unfavorable. Spending variance $ Efficiency variance \$